Honeywell RESCU 406AFN Component Maintenance Manual With Illustrated Parts List page 88

1. General
A. This appendix provides general installation guidelines for each component of the system.
B. The RESCU 406AFN Emergency Locator Transmitter system consists, at a minimum, of a
transmitter unit and an antenna. A full system with all the options consists of a transmitter unit, a
remote panel, an AIM or a NAIM, a 24-bit DIP switch module and an antenna as well as any
associated wiring between components.
C. Dimensional drawings for the transmitter unit, AIM or NAIM, transmitter unit with AIM or NAIM,
remote panel and the antenna are shown in Figures 801 to 808 respectively.
D. Locations of the RESCU 406AFN Emergency Locator Transmitter system components are shown
in Figure 4.
2. Installation of Transmitter Unit
A. Install the transmitter unit in or near the tail section of the aircraft such that the coaxial connector
on the transmitter unit is within a short distance (e.g., two-metre range) of the coaxial connector on
the base of the antenna.
B. Bolt the transmitter unit firmly to a section of the aircraft that is either solidly attached to or is part of
the main structure of the aircraft.
C. Attach the transmitter unit to the aircraft with an orientation such that the directional arrow on the
outside of the transmitter unit points toward the front of the aircraft and the horizontal axis of the
transmitter unit is within ±10 degrees of the horizontal axis of the aircraft.
D. If no suitable area is available to house the transmitter unit using the standard bolting dimensions
of the transmitter unit, use the mounting plate adapter that corresponds to the particular aircraft on
which the transmitter unit is being installed.
E. When installing the transmitter unit, leave enough space at the end connecting the AIM or NAIM to
the transmitter unit (if there is an AIM or a NAIM) such that the AIM or NAIM can comfortably fit in
the installation area. In addition, if a 24-bit DIP switch module is installed, leave extra space behind
the AIM or NAIM to allow for the connector that connects the AIM or NAIM to the 24-bit DIP switch
module.
F. Access to the front panel of the transmitter unit (which contains the control switch and indicating
LED) is necessary for periodic testing. Therefore, install the transmitter unit in such a manner that
maintenance personnel have relatively easy access to the front panel.
© Honeywell International Inc. Do not copy without express permission of Honeywell.
COMPONENT MAINTENANCE MANUAL
1152682
APPENDIX A
INSTALLATION GUIDELINES
23-24-02
Page A-1
Oct 27/06